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#第七届立创电赛#USB电流表

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描述

<div class="document"> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">注:* 为必填项</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><strong><span style="color:#0093e6;">请在报名阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">请输入内容…</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">基于N32G430C8L7+INA199制作的USB电流表,精度1%。</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">首次公开,原创,不曾获奖…</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">请输入内容…</span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">注:利他即利己,请认真阅读下述内容。</span></p> <ol style="line-height:1.8;"><li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">拥抱开源,赋予项目无限价值。建议项目核心功能开源80%以上;</span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">若某一部分功能不可替代且删掉之后项目无法解决对应的问题,则这一部分实现的功能就是项目的核心功能;比如设计了一台电子负载且设计了一款上位机软件监控功率变化,则电子负载为核心功能,上位机软件为辅助功能;比如电子负载中使用了一款隔离485模块与上位机通信,则此485模块实现的通讯功能为辅助功能;</span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">项目应选择适合自己的<span style="text-decoration:underline;"><a href="/posts/98fdb2accd754af7b51990790db3b47a" target="_blank">开源协议</a></span>,若项目引用其他开源项目,应注明来源并遵循原作者的开源协议规定;原创项目推荐使用GPL3.0开源协议;</span></li> <li class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-hanging-indent-1.6em" style="line-height:1.8;"><span style="color:#95a5a6;font-size:14px;">直接引用开源项目的原电路或原代码实现的功能不可作为自己项目的核心功能、使用市场上通用模块直接实现的功能不可作为自己项目的核心功能。</span></li> </ol><p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><strong><span style="color:#0093e6;">请在竞赛阶段填写 ↓</span></strong></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"><p>   N32G430C8L7 微控制器产品采用高性能 32 位 ARM Cortex™-M4F 内核,集成浮点运算单元(FPU)和数字信号处理(DSP),支持并行计算指令。最高工作主频 128MHz,集成高达64KB片内加密存储Flash,并支持多用户分区权限管理,支持16KB 的嵌入式 SRAM。内置一个内部高速 AHB 总线,两个低速外设时钟总线 APB 及总线矩阵,支持40个可复用 I/Os,提供丰富的高性能模拟接口,包括1个12位 4.7Msps ADC,支持16个外部输入通道和3个内部通道,同时提供多种数字通信接口,包括 4个U(S)ART、2个I2C、2个SPI/I2S、1个CAN 2.0B通信接口。N32G430C8L7 微控制器产品可稳定工作于-40°C 至+105°C的温度范围,供电电压2.4V至3.6V,提供多种功耗模式供用。</p> <p>       本次项目使用的芯片为N32G430C8L7。设计电路时需要注意的是芯片的每个电源的引脚都需要额外接一个100nF的外接的滤波电容,芯片的1脚需要额外接4.7uf的滤波电容。电路图如图所示。</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/Gw69Bja4gTxem5MnridE32rW1SinfTjqy0u7Hlfv.png" alt="Gw69Bja4gTxem5MnridE32rW1SinfTjqy0u7Hlfv.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">降压电路,将5V降压为3.3V,给芯片工作。</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/401iKEblnVBpyfuxYRqL7GXdNdirbOn7zbsL1RYe.png" alt="401iKEblnVBpyfuxYRqL7GXdNdirbOn7zbsL1RYe.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">复位电路</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/Z5OxajVVmdhfHGpDmFzUpQDdZ5jQ9AdN1x2u452y.png" alt="Z5OxajVVmdhfHGpDmFzUpQDdZ5jQ9AdN1x2u452y.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">电流采样</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/HGhGMc4UUuUjUi1K2eqy3cIDZAP6ay2GSz9qmhuM.png" alt="HGhGMc4UUuUjUi1K2eqy3cIDZAP6ay2GSz9qmhuM.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">程序烧录电路</p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/SnAd5I3s1zSnFhFfr16KdKP2tkSxSLxX1KlVkPXH.png" alt="SnAd5I3s1zSnFhFfr16KdKP2tkSxSLxX1KlVkPXH.png"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt pap-left-indent-1.6em" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*5、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"><p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">*6、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/lHWArehjXERikcrJvtLzE3hrmPZm1Uz3MJMXCbrR.png" alt="lHWArehjXERikcrJvtLzE3hrmPZm1Uz3MJMXCbrR.png" width="613" height="213"></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><img src="//image.lceda.cn/pullimage/irNvqKMu8mVlJ858puwh29Soi7OC2gbKnnPNhT88.png" alt="irNvqKMu8mVlJ858puwh29Soi7OC2gbKnnPNhT88.png" width="611" height="240"></p> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"><p style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"><span style="font-size:14px;">更多详情:<a href="/posts/06c94d90c2c447dfbd9ed7339ff4a5b1" target="_blank">https://diy.szlcsc.com/posts/d76d9cb41705430e9a54e7a5feed07a5</a></span></p> <p class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height:1.8;"> </p> </div>

文档

USB电流测量表

PCB_#第七届立创电赛#USB电流表

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part
1 0.1U C1,C6 C0603 2
2 4.7u C2 C0603 1
3 100nF C3,C4,C5,C7,C12,C13,C14,C15 C0603 8
4 10pf C8,C9 C0603 2
5 12pf C10,C11 C0603 2
6 USB-CONN-AM90 CN1 USB-A-TH_AM90 1
7 PMEG120G10ELRX D1 SOD-123W_L2.9-W2.1-LS4.4-RD 1
8 Header-Male-2.54_1x6 H1 HDR-TH_6P-P2.54-V-M-1 1
9 HDR-F-2.54_1x4 H2 HDR-F-2.54_1X4 1
10 PZ254V-11-03P H4 HDR-TH_3P-P2.54-V-M 1
11 K2-3.6×6.1_SMD KEY1 KEY-SMD_2P-L6.2-W3.6-LS8.0 1
12 0.01Ω R1 R2512 1
13 R2 R0603 1
14 1K R3,R5,R7 R0603 3
15 91kΩ R4 R0805 1
16 10kΩ R6 R0603 1
17 N32G430C8L7 U1 LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL 1
18 INA199A1DCKR U2 SC-70-6_L2.2-W1.3-P0.65-LS2.1-BR 1
19 AMS1117-3.3V U3 SOT-223-4_L6.5-W3.5-P2.30-LS7.0-BR 1
20 U-A-24DS-W-1 USB1 USB-A-SMD_U-A-24DS-W-1. 1
21 - X1,X2 OSC-SMD_L5.0-W3.2 2

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立创电赛 回复
<p><span class="colour" style="color: rgb(85, 85, 85);">板子上记得打立创电赛logo哦</span></p>
立创电赛 回复
<p>9月20日截止提交,请在此之前完善文档哦</p>
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